7.9.2 Blackout detection mismatch
This alarm communicates that not all controllers in the section detected the blackout.
The alarm is based on the blackout detection for all the controllers in the section. The alarm
is activated when one or more controllers detect a blackout, while one or more controllers in
the same section do not detect a blackout, and this continues for longer than the delay time.
This alarm is present in GENSET, SHAFT generator and SHORE connection controllers.
0
1
Controller B
Voltage [%]
Time
Delay
Blackout
mismatch
0
100
0
100
Controller A
Voltage [%]
Configure the parameters under Configure > Parameters > System > Monitoring > Blackout detection mismatch.
Table 7.27
Default parameters
Parameter Range Default
Delay 0 s to 1 h 1 s
Enable Not enabled, Enabled Not enabled
Action Warning
7.9.3 Heavy consumer reservation not possible
This alarm communicates that there is not enough
power available in the PMS to start the heavy
consumer.
The timer starts when the Heavy consumers > [Heavy
consumer #] > Request is activated. The timer runs until
the power management system confirms that the
required power is available. If the Delay (t1) is
exceeded, the controller activates the alarm, and the
heavy consumer request is cancelled. If reservation is
impossible the alarm is activated immediately, without
waiting for the timer to expire.
The required power can be too low if the system is
already under heavy load, or if the available gensets fail
to start. When the alarm is activated, the power
management system ignores heavy consumer
requests.
t1
Request
Extra power
available
(1)
(2)
Configure the parameters under Configure > Parameters > Heavy consumers > [Heavy consumer #] > Reservation not
possible, where # is 1 to 4 and [Heavy consumer #] can be replaced with the Controller label of the heavy consumer. This alarm is
always enabled.
DESIGNER'S HANDBOOK 4189340911K UK Page 274 of 521
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